Explore Houston in an open air, double-decker bus around Downtown and the Historic District. This tour offers the best of the city’s symbolic sites and attractions in one easy sitting. Along the way, enjoy commentary from audio or live guide who will tell you about attractions, such as the giant Chase Tower. Hear stories about the colorful theater district and learn more about many of the city's most important landmarks. • Hilton Americas Hotels at the Convention Center • Market Square - Historic District • City Hall and Visitors Center • Downtown Aquarium - Theater District • Sam Houston Park and Heritage Society historic homes • Discover the oldest commercial building still in use since 1840's • Houston's tunnel system • Graffiti park at Old China Town

Explore the wonders of space travel on an unforgettable tour that includes a mini-city tour around Houston and roundtrip transportation to the NASA/Johnson Space Center.  Enjoy interactive exhibits and activities, touch a moon rock, take a tram ride to the NASA control center and see the shuttle replica at the Independence Plaza. Begin your day of space exploration on land as you are taken a short city sightseeing tour around Houston where you can see some of its most important landmarks.  Afterward, drive 25 miles from the center of Houston to the Space Center Houston and experience America’s adventures in space first-hand. Space Center Houston is the visitor center for NASA's Johnson Space Center. It is a separate facility that features activities and exhibits designed jointly by NASA and Disney Imagineering. Get a chance to ride the half-hour tram tour that goes to the gigantic International Space Station Assembly Building and to the NASA control center. Both kids and adults will enjoy the interactive displays. Don’t miss the Starship Gallery Artifact Museum, where you can touch a moon rock or try out the simulator that lets you land the lunar orbiter.